A large percentage of AP articles posted on FR are from sites that require excerpts only. Those thousands of sources have now lost thousands of hits because of AP’s reckless action. AP’s loss.
From the, "AP sells headline and lead-only services to customers. Asking the company to concede there’s a way people can share this information for free is like asking the RIAA to pick its favorite file-sharing client." it appears that they will not even allow exact titles to be quoted. If Cadenhead's take is right there HAS to be a Fair Use battle.
As far as the "lead only" service he is talking about. I don't think that is anything at FR. Every AP story linked I have seen goes to a full article.